Shrimp Bioconditioners
Shrimp water conditioners immediately make water safe for Neocaridina (Neocaridina davidi) and Caridina (Caridina cf. cantonensis): they neutralize chlorine and chloramines, bind heavy metals (primarily copper, which is toxic to crustaceans) and can temporarily detoxify ammonia/nitrites.
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When to use them: with every tap water change or in an emergency. If you use remineralized reverse osmosis water, a water conditioner is usually not needed (there is no chlorine/metals to neutralize).
How they work: dechlorinators/thiosulfates neutralize chlorine and chloramines; chelating agents (e.g., EDTA) bind heavy metals (copper, zinc); some formulations detoxify NH3/NO2, giving the biological filter time to act.
"Shrimp-safe" choice: prefer specific lines for shrimp and planted aquariums (plant-safe). Soothing additives (colloids, aloe) are useful in case of stress/transport. Avoid generic products that do not declare shrimp-safety.
Correct use: dose in the change bucket, mix, and aerate for 10–15 minutes before introducing into the tank. Do not overdose; increase surface agitation during dosing. If you also administer live bacteria, wait 10–15 minutes between the two steps and turn off UV/ozone for 24–48 hours after the bacteria.
Notes for molting: stable parameters (GH/KH/TDS from osmosis salt) are more important than conditioner for correct molting; the water conditioner protects but does not replace good remineralization.
Tip: If possible, prepare changes with reverse osmosis water + dedicated salts (GH+/GH&KH+) and use the water conditioner only when using tap water or in an emergency: for shrimp, stability > everything else.
— Tip from the Hobby Pesca & Acquari Team